What are the things to look for when shopping for an air filtration unit? Does the company use flashy words like "ultra" in front of their filtration media to make it sound better than it is? Do you know what the four grades of filtery efficiency is? Are higher grades always better or can they be worse for your situation? Are stand alone air filtration units even the highest choice for your situation? Did you know that your HVAC system moves 30 to 40 times more air than your $1000 HEPA filtration unit?  David Milburn of HypoAllergenic Air joins me for the first time since 2019 (my first podcast episode) to talk about all of the dirty secrets in the air filtration industry. I am passionate about this topic because I see many parallels between the air filter and water filter marketing tactics. There are lots of razzle and dazzle claims without much substance behind them. Order HypoAir products: http://hypoair.com/blackburn Use the discount code BLACKBURN to save 10% Order AirOasis iAdapt filters: www.airoasis.com No discount code :( Check out my CLF Protocol and recommended products: www.matt-blackburn.com Order Mitolife products: www.mitolife.co Music by George Henner: https://georgehenner.bandcamp.com